Defn: To expose to the chemical action of air; to oxygenate (the blood) by respiration; to arterialize. Aërated bread, bread raised by charging dough with carbonic acid gas, instead of generating the gas in the dough by fermentation.
AERATION
A`ër*a"tion, n. Etym: [Cf. F. aération.]
1. Exposure to the free action of the air; airing; as, aëration of soil, of spawn, etc.
2. (Physiol.)
Defn: A change produced in the blood by exposure to the air in respiration; oxygenation of the blood in respiration; arterialization.
3. The act or preparation of charging with carbonic acid gas or with oxygen.
AERATOR
A"ër*a`tor, n.
Defn: That which supplies with air; esp. an apparatus used for charging mineral waters with gas and in making soda water.
AERENCHYM; AERENCHYMA
{ A"ër*en`chym, A`ër*en"chy*ma }, n. [NL. aërenchyma. See Aëro-;
Enchyma.] (Bot.)
Defn: A secondary respiratory tissue or modified periderm, found in many aquatic plants and distinguished by the large intercellular spaces.